Chris Evans has stepped down as Top Gear presenter after saying his best shot was "not enough".
The TV and radio presenter said he was stepping down after just one series, amidst flagging ratings.
Top Gear's audience fell to a new low of fewer than two million viewers as the series, hosted by Chris and Matt LeBlanc, stalled again in the ratings on Sunday.
Chris tweeted fans to break the news.
In a statement, Chris said: "I have never worked with a more committed and driven team than the team I have worked with over the last 12 months. I feel like my standing aside is the single best thing I can now do to help the cause.
"I remain a huge fan of the show, always have been, always will be. I will continue to focus on my radio show and the allied events that it encompasses."
Mark Linsey, director of BBC Studios, said: "Chris is stepping down from his duties on Top Gear. He says he gave it his best shot doing everything he could to make the show a success.
"He firmly believes that the right people remain, on both the production team and presenting team, to take the show forward and make it the hit we want it to be."